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fs: rcu-walk aware d_revalidate method
authorNick Piggin <npiggin@kernel.dk>
Fri, 7 Jan 2011 06:49:57 +0000 (17:49 +1100)
committerNick Piggin <npiggin@kernel.dk>
Fri, 7 Jan 2011 06:50:29 +0000 (17:50 +1100)
Require filesystems be aware of .d_revalidate being called in rcu-walk
mode (nd->flags & LOOKUP_RCU). For now do a simple push down, returning
-ECHILD from all implementations.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>

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